Hi,
Nguyen,
Are you running Honorbuddy with administrator privileges?
Is your toon standing in the game world when you launch Honorbuddy?
If the above are true, then let's start by changing the WoWclient from DX11 to DX9, and
restart the WoWclient. More details here:
If no joy, its time to look for an interfering program:
There's a good chance your Antivirus program is preventing Honorbuddy from running.
If still no joy, please show us a fresh log.
cheers,
chinajade